Calling Another Vessel (Channel 16 Or 9); Making Telephone Calls - Standard Horizon MATRIX GX3000S Owner's Manual

10.8 CALLING ANOTHER VESSEL ( CHANNEL 16 OR 9 )
Channel 16 may be used for initial contact (hailing) with another vessel.
However, its most important use is for emergency and distress messages.
This channel must be monitored at all times except when actually using an-
other channel.
It is monitored by the U.S. and Canadian Coast Guards and by other vessels.
Use of channel 16 for hailing must be limited to initial contact only. Call-
ing should not exceed 30 seconds, but may be repeated 3 times at 2-minute
intervals. In areas of heavy radio traffic, congestion on channel 16 resulting
from its use as a hailing channel can be reduced significantly in U.S. waters by
using channel 9 as the initial contact (hailing) channel for non-emergency
communications. Here, also, calling time should not exceed 30 seconds but
may be repeated 3 times at 2-minute intervals.
Prior to making contact with another vessel, refer to the channel charts in this
manual, and select an appropriate channel for communications after initial
contact. For example, Channels 68 and 69 are some of the channels available
to non-commercial (recreational) boaters. Monitor your desired channel in ad-
vance to make sure you will not be interrupting other traffic, and then go back
to either channel 16 or 9 for your initial contact.
When the hailing channel (16 or 9) is clear, state the name of the other vessel
you wish to call and then "this is" followed by the name of your vessel and
your Station License (Call Sign). When the other vessel returns your call, im-
mediately request another channel by saying "go to," the number of the other
channel, and "over." Then switch to the new channel. When the new channel
is not busy, call the other vessel.
After a transmission, say "over," and release the microphone's push-to-talk
(PTT) switch. When all communication with the other vessel is completed, end
the last transmission by stating your Call Sign and the word "out." Note that it
is not necessary to state your Call Sign with each transmission, only at the
beginning and end of the contact.
Remember to return to Channel 16 when not using another channel. Some
radios automatically monitor Channel 16 even when set to other channels or
when scanning.

10.9 MAKING TELEPHONE CALLS

To make a radiotelephone call, use a channel designated for this purpose, The
fastest way to learn which channels are used for radiotelephone traffic is to
ask at a local marina. Channels available for such traffic are designated Pub-
lic Correspondence channels on the channel charts in this manual. Some
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